Fifth wheel travel trailer rear panel unit exterior surface



FIG. 1 is a perspective view of a fifth wheel travel trailer rear panelunit exterior surface illustrating my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof; and,

FIG. 4 is a left side elevation thereof, with the right side elevationbeing substantially a mirror image.

The ornamental design for a fifth wheel travel trailer rear panel unitexterior surface, as shown and described.